The total surface area of a cube is 181.5cm
2
. Find its side (in cm).
- A6.5
- B4.5
- C7.5
- D5.5
Solution & Step-by-step Explanation
The total surface area (TSA) of a cube with side length a is given by:
TSA=6a
2
Given that TSA =181.5cm
2
:
6a
2
=181.5
a
2
=
6
181.5
a
2
=30.25
a=
30.25
=5.5cm
TSA=6a
2
Given that TSA =181.5cm
2
:
6a
2
=181.5
a
2
=
6
181.5
a
2
=30.25
a=
30.25
=5.5cm